[codecane] Remove all environment variable displays from welcome message

Removed both CLI and SDK environment variable displays from the welcome message. These were added for testing env var flow through the build pipeline but are not needed in production.

Author: brandonkachen

cli/src/chat.tsx

@@ -54,8 +54,6 @@ import {
   createMarkdownPalette,
   type ChatTheme,
 } from './utils/theme-system'
-import { env } from '@codebuff/common/env'
-import { clientEnvVars } from '@codebuff/common/env-schema'
 import { openFileAtPath } from './utils/open-file'
 import { formatValidationError } from './utils/validation-error-formatting'
 import { createValidationErrorBlocks } from './utils/create-validation-error-blocks'
@@ -272,27 +270,6 @@ export const App = ({
         })
       }
 
-      // Log all client environment variables (works with both dev and binary modes)
-      // In binary mode, env vars are embedded via --define and accessible through the env object
-      // In dev mode, they come from process.env via Infisical
-      const envVarsList = clientEnvVars
-        .map((key) => {
-          const value = env[key]
-          // Truncate long values for display
-          const displayValue =
-            typeof value === 'string' && value.length > 50
-              ? value.substring(0, 47) + '...'
-              : value
-          return `  ${key}=${displayValue}`
-        })
-        .join('\n')
-
-      blocks.push({
-        type: 'text',
-        content: `\nEnvironment variables:\n${envVarsList}`,
-        marginTop: 1,
-      })
-
       // Calculate path from home directory to repository root
       // agentsDir is typically in the root, so use its parent as the repository root
       const homeDir = os.homedir()